Synthesis and fluorescence properties of dansyl labeled triazine dendrons

Abstract

Abstract A series of fluorescent dendrons with dansulfonyl group as a fluorophore attached at the focal point were synthesized by a convergent method. There was no need for tedious and lengthy protection/deprotection or chromatographic separation. The method provided simple operation and high yield. Their fluorescence characteristic in dichloromethane was investigated. The results indicated that the dendritic modification had positive effect on the emission of fluorescence, and the emission maximum of dansylated dendrons was enhanced up to 20-fold. Meanwhile, the fluorescent intensity of dansylated dendrons could be remarkably improved with the increase of dendron generation. These findings can contribute significantly to the general understanding of the dendron systems and also for potential applications in photochemical molecular devices and organic electroluminescent devices.